NPK International Inc.
NPKI- Exchange
- NYSE
- Industry
- Services-Miscellaneous Equipment Rental & Leasing
- SEC CIK
- 0000071829
In the last 90 days, NPK International Inc. insiders filed 0 open-market purchases and 3 sales; 256 institutions reported holding it in 13F filings for Q2 2026, worth $1.25B in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $203.7K in total
- 3
- 13F holdersQ2 2026, +14 vs. previous quarter
- 256
- 13F valueReported value at the end of Q2 2026
- $1.25B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding NPKI, Q2 2026
No superinvestor reported holding NPKI at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by NPK International Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 10, 2026 (view filing)6:22 PM ET | Sep 9 | 1 day | Warren Matthew JamesChief Accounting Officer | SSale | −2.99K | $13.41 | −$40.1K | −5.5%51.4K after | 10b5-1 |
| Aug 31, 2026 (view filing)4:28 PM ET | Aug 27 | 4 days | Robeson Rose MDirector | SSale | −10.0K | $13.49 | −$134.9K | −4.4%215.1K after | 10b5-1 |
| Aug 19, 2026 (view filing)4:14 PM ET | Aug 17 | 2 days | Lewis Michael ADirector | SSale | −2.01K | $14.26 | −$28.7K | −1.5%135.9K after | 10b5-1 |
| Jun 9, 2026 (view filing) | Jun 8 | 1 day | Briggs LoriVP & President, Ind. Solutions | SSale | −8.32K | $14.75 | −$122.8K | −3.3%247.2K after | 10b5-1 |
| Jun 5, 2026 (view filing) | Jun 3 | 2 days | Lanigan MatthewPresident & CEO | SSale | −167.4K | $14.43 | −$2.42M | −39.7%254.7K after | 10b5-1 |
| Jun 3, 2026 (view filing) | Jun 2 | 1 day | Briggs LoriVP & President, Ind. Solutions | SSale | −10.4K | $14.58 | −$152.3K | −3.9%255.5K after | 10b5-1 |
| May 19, 2026 (view filing) | May 15 | 4 days | Lewis Michael ADirector | SSale | −2.01K | $15.30 | −$30.8K | −1.5%129.3K after | 10b5-1 |
| Apr 10, 2026 (view filing) | Apr 9 | 1 day | Piontek GreggSenior Vice President and CFO | SSale | −15.0K | $15.05 | −$225.8K | −1.8%819.3K after | 10b5-1 |
| Apr 3, 2026 (view filing) | Apr 1 | 2 days | Piontek GreggSenior Vice President and CFO | SSale | −35.0K | $14.51 | −$507.9K | −4.0%834.3K after | 10b5-1 |
| Mar 26, 2026 (view filing) | Mar 25 | 1 day | Piontek GreggSenior Vice President and CFO | SSale | −15.0K | $15.03 | −$225.4K | −1.7%869.3K after | 10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in NPK International Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,940,503 | $126.3M | 0.00% | +737,798+10.2% | Added |
| Ameriprise Financial Inc | 4,486,433 | $71.4M | 0.01% | −1,137,119−20.2% | Reduced |
| Dimensional Fund Advisors LP | 3,641,547 | $57.9M | 0.01% | −342,111−8.6% | Reduced |
| Vanguard Capital Management LLC | 3,604,823 | $57.4M | 0.00% | +179,881+5.3% | Added |
| American Century Companies Inc | 3,128,652 | $49.8M | 0.02% | +84,889+2.8% | Added |
| Wasatch Advisors Inc | 2,811,593 | $44.7M | 0.29% | −87,428−3.0% | Reduced |
| Geode Capital Management, LLC | 2,369,714 | $37.7M | 0.00% | +125,550+5.6% | Added |
| Royce & Associates LP | 2,149,100 | $34.2M | 0.28% | +78,090+3.8% | Added |
| State Street Corp | 2,014,703 | $32.1M | 0.00% | +59,384+3.0% | Added |
| Punch & Associates Investment Management, Inc. | 1,738,857 | $27.7M | 1.37% | −79,933−4.4% | Reduced |